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Operating Instructions
Greentherm T9800 SE 160/199 – 6 720 816 815 (2022/01)
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The water heater is wired as shown in the wiring diagram
(chapter 10, Fig. 63).
Fig. 35 Connecting power supply cord
[1] Power cord length: 5.9 ft (1.8m).
Note: The power supply that the appliance is plugged into
should be isolated from possible water damage. Observe
proper clearance to avoid damages.
5.2 Position of the fuses in control unit
To check the fuse, proceed as follows:
▶ Disconnect the appliance from the power supply before
removing the front cover.
▶ Remove the front cover, see fig. 3, page 12.
▶ Disconnect all the cables from the control unit.
▶ Press the four snaps of the control unit and remove the
cover.
Fig. 36 Control Unit
▶ Press the four snaps inside the control unit and remove the
PCB.
▶ Check the fuse on the printed circuit board, for electrical
continuity, see fig. 37, [1].
Fig. 37 Fuse position
[1] Fuse
▶ After checking the fuse, reinstall all parts in reverse order.
6 Operating Instructions
Fig. 38 Touch control display
[1] LCD display
[2] Up button
[3] Down button
[4] On/Off button
[5] Confirmation button
[6] Return button
[7] Burner status / Error symbol
NOTICE:
Instruction to clean display
▶ Wipe down with a damp cloth. Do not use any aggressive or
corrosive cleaning agents to clean the display.
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6720813761-03.1V
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